<div>What happens when you've shared the primary IPv6 address of a VM with another VM? To which VM does the primary key point to? I think overloading the IPv6 address to also mean the primary key is probably a mistake that will cause serious trouble with network-as-a-service portability.</div>
<div><br></div><div>-C</div><div><br></div><div><br></div><br><br><div class="gmail_quote">On Mon, Jul 11, 2011 at 1:03 PM, Glen Campbell <span dir="ltr"><<a href="mailto:glen.campbell@rackspace.com">glen.campbell@rackspace.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">I kind of like the IPv6 idea myself. How would it work with a service<br>
provider that, for example, assigns a /96 address for an instance? If the<br>
user can change the IP address, would that mean that the instance ID would<br>
change as well? Or should we just keep with the original /96 (::0) address?<br>
<div><div></div><div class="h5"><br>
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On 7/11/11 2:57 PM, "Chris Behrens" <<a href="mailto:chris.behrens@RACKSPACE.COM">chris.behrens@RACKSPACE.COM</a>> wrote:<br>
<br>
>If you're referring to encoding zone information, yes it would. I was<br>
>trying to ask more generally as well. IPv6 would be a very good<br>
>solution, IMO.<br>
><br>
>- Chris<br>
><br>
>On Jul 11, 2011, at 12:47 PM, Sandy Walsh wrote:<br>
><br>
>> Won't an IPv6 address do that by it's very nature?<br>
>><br>
>> -S<br>
>><br>
>> ________________________________________<br>
>> From: openstack-bounces+sandy.walsh=<a href="http://rackspace.com" target="_blank">rackspace.com</a>@<a href="http://lists.launchpad.net" target="_blank">lists.launchpad.net</a><br>
>>[openstack-bounces+sandy.walsh=<a href="http://rackspace.com" target="_blank">rackspace.com</a>@<a href="http://lists.launchpad.net" target="_blank">lists.launchpad.net</a>] on<br>
>>behalf of Chris Behrens [<a href="mailto:chris.behrens@RACKSPACE.COM">chris.behrens@RACKSPACE.COM</a>]<br>
>> Sent: Monday, July 11, 2011 4:24 PM<br>
>> To: Ed Leafe<br>
>> Cc: <a href="mailto:openstack@lists.launchpad.net">openstack@lists.launchpad.net</a>; Chris Behrens<br>
>> Subject: Re: [Openstack] Cross-zone instance identifiers in EC2 API -<br>
>>Is it worth the effort?<br>
>><br>
>> On Jul 11, 2011, at 12:01 PM, Ed Leafe wrote:<br>
>><br>
>>> On Jul 11, 2011, at 2:04 PM, Eric Day wrote:<br>
>>><br>
>>>>> How is<br>
>>>>><br>
>>>>> nova-<account>-<instance uuid><br>
>>>>><br>
>>>>> any different than:<br>
>>>>><br>
>>>>> AAAABBBB-CCCC-DDDD-EEEE-FFFFGGGGHHHH<br>
>>>>><br>
>>>>> Where AAAA/BBBB/CCCC (or some subset of them) are reserved/regulated?<br>
>>>><br>
>>>> Nothing, if DDDD-EEEE-FFFFGGGGHHHH is a full UUID. If we compare to<br>
>>>> swift, the account prefix is a UUID too. The account prefix could be<br>
>>>> fixed for a session or passed in to every request depending on how<br>
>>>> things are decided.<br>
>>><br>
>>> <sigh><br>
>>><br>
>>> It's a shame that the ipv6 proposal was never more fully<br>
>>>considered. That would handle the uniqueness, with the added benefit of<br>
>>>providing simple zone routing via DNS, with the exact same 128-bit/32<br>
>>>char size.<br>
>><br>
>> I don't I remember that proposal, but that's such a neat idea. Was<br>
>>anything discussed at all in Santa Clara regarding encoding zone<br>
>>information in the instance identifier? I apparently missed the<br>
>>instance identifier discussion somehow.<br>
>><br>
>> - Chris<br>
>><br>
>><br>
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>><br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br><div><span style="border-collapse:collapse;color:rgb(68, 68, 68);font-family:arial, sans-serif;font-size:13px">Christopher MacGown<br>Piston Cloud Computing, Inc.<br>
<a style="color:rgb(34, 34, 34)">(415) 300-0944</a><br>chris@piston.cc</span></div><br>